package c4.Example14;
abstract  class Animal{
    abstract  void  shout();
}
class  Cat extends  Animal{
    void shout(){
        System.out.println("喵……喵……喵");
    }
}
class Dog extends Animal{
    void shout(){
        System.out.println("汪汪汪");
    }
}

public class Example14 {
    public static void main(String[] args) {
        Animal cat = new Cat();
        Animal dog = new Dog();
        cat.shout();
        dog.shout();
    }
}
